Inkousty jsou obvykle na b\u00e1zi epoxidu nebo vytvrzuj\u00ed UV z\u00e1\u0159en\u00edm. Epoxidov\u00e9 barvy maj\u00ed obvykle silnou p\u0159ilnavost a dob\u0159e odol\u00e1vaj\u00ed p\u00e1jec\u00edmu teplu. Inkousty vytvrzovan\u00e9 UV z\u00e1\u0159en\u00edm rychle schnou a jsou vhodn\u00e9 pro velk\u00e9 objemy.<\/p>\n\n\n\n
Z\u00e1le\u017e\u00ed tak\u00e9 na podkladu a povrchov\u00e9 \u00faprav\u011b. FR4 je obvykl\u00fd a tiskne se z n\u011bj p\u011bkn\u011b. Materi\u00e1ly Rogers n\u011bkdy vy\u017eaduj\u00ed specifick\u00e9 slo\u017een\u00ed inkoustu. Flex PCB jsou slo\u017eit\u011bj\u0161\u00ed, proto\u017ee povrch se pohybuje a inkoust se mus\u00ed tak\u00e9 oh\u00fdbat. A povrchov\u00e9 \u00fapravy jako HASL mohou vytv\u00e1\u0159et nerovnom\u011brnou topografii, kter\u00e1 znesnad\u0148uje jemn\u00fd s\u00edtotisk, zat\u00edmco ENIG je rovn\u011bj\u0161\u00ed a p\u0159\u00edv\u011btiv\u011bj\u0161\u00ed.<\/p>\n\n\n\n
Dv\u011b velk\u00e9 metody tisku (a pro\u010d by v\u00e1s to m\u011blo zaj\u00edmat)<\/h2>\n\n\n\n
V\u011bt\u0161ina s\u00edtotiskov\u00fdch legend, se kter\u00fdmi se setk\u00e1te, je vyrobena pomoc\u00ed jedn\u00e9 z nich:<\/p>\n\n\n\n
Liquid Photo Imaging (LPI)<\/h3>\n\n\n\n
LPI pou\u017e\u00edv\u00e1 sv\u011btlocitliv\u00fd inkoust a proces expozice. Je b\u011b\u017en\u00fd v s\u00e9riov\u00e9 v\u00fdrob\u011b a b\u00fdv\u00e1 trvanliv\u00fd. Dok\u00e1\u017ee udr\u017eet slu\u0161n\u00e9 detaily, ale jako u ka\u017ed\u00e9ho procesu i zde plat\u00ed pravidla pro minim\u00e1ln\u00ed \u0159\u00e1dky a text.<\/p>\n\n\n\n
P\u0159\u00edm\u00fd tisk legendy (DLP)<\/h3>\n\n\n\n
DLP je v podstat\u011b p\u0159\u00edm\u00fd tisk, \u010dasto inkoustov\u00fd, p\u0159\u00edmo na desku plo\u0161n\u00fdch spoj\u016f. Vynech\u00e1v\u00e1 f\u00f3lie a vyvol\u00e1vac\u00ed kroky, m\u016f\u017ee b\u00fdt rychlej\u0161\u00ed a dok\u00e1\u017ee vytv\u00e1\u0159et detailn\u00ed legendy. \u010casto se tak\u00e9 popisuje jako o n\u011bco m\u00e9n\u011b odoln\u00fd ne\u017e LPI, v z\u00e1vislosti na syst\u00e9mu inkoustu a vytvrzov\u00e1n\u00ed.<\/p>\n\n\n\n
Praktick\u00fd z\u00e1v\u011br pro design\u00e9ry je jednoduch\u00fd.<\/p>\n\n\n\n
I kdy\u017e prodejce dok\u00e1\u017ee vytisknout velmi jemn\u00e9 prvky, va\u0161e v\u00fdnos<\/em> klesne, kdy\u017e p\u0159itla\u010d\u00edte s\u00edtotisk k okraji. A \u010ditelnost kles\u00e1 je\u0161t\u011b d\u0159\u00edve. Proto se sna\u017e\u00edme o \u201cspolehliv\u00e9 v\u00fdtisky\u201d, nikoliv o \u201cv\u00fdtisky v laboratorn\u00ed uk\u00e1zce\u201d.<\/p>\n\n\n\n Chcete p\u00edsmo, kter\u00e9 z\u016fstane \u010diteln\u00e9, kdy\u017e:<\/p>\n\n\n\n Praktick\u00e9 mo\u017enosti:<\/p>\n\n\n\n Pro\u010d ne efektn\u00ed p\u00edsma?<\/p>\n\n\n\n Proto\u017ee serify a kontrasty tenk\u00fdch a siln\u00fdch tah\u016f se na s\u00edtotisku rychle o\u0161kliv\u00ed. Kudrlinky se vypln\u00ed. Drobn\u00e9 mezery se uzav\u0159ou. P\u00edsmena \u201cR\u201d a \u201cP\u201d za\u010dnou vypadat jako stejn\u00e9 p\u00edsmeno. Nen\u00ed to designov\u00fd plak\u00e1t, je to n\u00e1vod k pou\u017eit\u00ed na tov\u00e1rn\u00edm objektu.<\/p>\n\n\n\n Udr\u017eujte konzistenci. Stejn\u00fd styl p\u00edsma na cel\u00e9 tabuli. Pokud styly m\u00edch\u00e1te, vypad\u00e1 to nep\u0159ehledn\u011b a znesnad\u0148uje to skenov\u00e1n\u00ed p\u0159i sestavov\u00e1n\u00ed.<\/p>\n\n\n\n Mnoho lid\u00ed uv\u00e1d\u00ed \u201cminim\u00e1ln\u00ed velikost textu 1,0 mm\u201d. Je to slu\u0161n\u00e9 pravidlo, ale je t\u0159eba ho rozv\u00e9st. Velikost textu neznamen\u00e1 t\u00e9m\u011b\u0159 nic bez \u0161\u00ed\u0159ky tahu.<\/p>\n\n\n\n U s\u00edtotisku na desky plo\u0161n\u00fdch spoj\u016f je nejd\u016fle\u017eit\u011bj\u0161\u00ed:<\/p>\n\n\n\n Zde jsou uvedena praktick\u00e1, v\u00fdrobn\u011b bezpe\u010dn\u00e1 doporu\u010den\u00ed, kter\u00e1 obvykle p\u0159e\u017eij\u00ed b\u011b\u017en\u00e9 v\u00fdrobn\u00ed tolerance.<\/p>\n\n\n\n Pro referen\u010dn\u00ed ozna\u010den\u00ed a \u0161t\u00edtky, kter\u00e9 maj\u00ed lid\u00e9 p\u0159e\u010d\u00edst bez mikroskopu:<\/p>\n\n\n\n Pokud ozna\u010dujete hust\u00e9 oblasti a sm\u00ed\u0159\u00edte se s t\u00edm, \u017ee to m\u016f\u017ee b\u00fdt \u201csestava \u010diteln\u00e1 se zv\u011bt\u0161en\u00edm\u201d:<\/p>\n\n\n\n Pokud pot\u0159ebujete text \u201cviditeln\u00fd zpoza stolu\u201d (n\u00e1zvy konektor\u016f, upozorn\u011bn\u00ed na polaritu):<\/p>\n\n\n\n Tyto rozsahy nejsou magick\u00e9 z\u00e1kony. Jsou to hodnoty \u201cpravd\u011bpodobn\u011b toho pozd\u011bji nebudete litovat\u201d.<\/p>\n\n\n\n Nap\u0159\u00edklad otvor uvnit\u0159 p\u00edsmene \u201cO\u201d nebo \u201cP\u201d. Pokud je p\u0159\u00edli\u0161 mal\u00fd, vypln\u00ed se a vzniknou kapky. Tak\u017ee i kdy\u017e je \u0161\u00ed\u0159ka va\u0161eho tahu technicky tisknuteln\u00e1, geometrie p\u00edsma takov\u00e1 b\u00fdt nemus\u00ed.<\/p>\n\n\n\n Proto v\u00edt\u011bz\u00ed jednoduch\u00e1 p\u00edsma. Udr\u017euj\u00ed \u010d\u00edta\u010de otev\u0159en\u00e9.<\/p>\n\n\n\n S\u00edtotisk nen\u00ed jen text. Jsou to obrysy, te\u010dky na v\u00fdvodu 1, zna\u010dky polarity plus, \u0161ipky, troj\u00faheln\u00edkov\u00e9 indik\u00e1tory, kole\u010dka testovac\u00edch bod\u016f.<\/p>\n\n\n\n Doporu\u010den\u00e9 \u0161\u00ed\u0159ky \u010dar:<\/p>\n\n\n\n P\u0159i p\u0159\u00edli\u0161 tenk\u00e9m tisku se linky l\u00e1mou nebo blednou. Pokud jsou p\u0159\u00edli\u0161 tlust\u00e9, ztr\u00e1cej\u00ed p\u0159esnost a mohou se srazit s jin\u00fdmi prvky.<\/p>\n\n\n\n Vypln\u011bn\u00e9 tvary (pln\u00e9 troj\u00faheln\u00edky, pln\u00e9 kruhy) jsou p\u0159i tisku \u0161etrn\u011bj\u0161\u00ed. Pokud pot\u0159ebujete indik\u00e1tor pin 1, kter\u00fd se v\u017edy zobraz\u00ed, je vypln\u011bn\u00e1 te\u010dka \u010dasto lep\u0161\u00ed ne\u017e mal\u00e9 obrysov\u00e9 kole\u010dko.<\/p>\n\n\n\n V\u011bt\u0161ina tov\u00e1ren automaticky o\u0159\u00edzne s\u00edtotisk, kter\u00fd p\u0159ekr\u00fdv\u00e1 otvory pro p\u00e1jec\u00ed masku, podlo\u017eky a obna\u017eenou m\u011b\u010f. To je dob\u0159e. Ale tak\u00e9 to znamen\u00e1, \u017ee v\u00e1\u0161 text m\u016f\u017ee b\u00fdt rozsek\u00e1n na nesmysly.<\/p>\n\n\n\n Proto je t\u0159eba p\u0159i n\u00e1vrhu myslet na voln\u00fd prostor a nespol\u00e9hat se na automatick\u00e9 o\u0159ez\u00e1v\u00e1n\u00ed.<\/p>\n\n\n\n Praktick\u00e9 odstupy:<\/p>\n\n\n\n Vyvarujte se tak\u00e9 um\u00eds\u0165ov\u00e1n\u00ed s\u00edtotisku p\u0159es p\u0159ehrady p\u00e1jec\u00ed masky mezi podlo\u017ekami. I kdy\u017e se vytiskne, m\u016f\u017ee vypadat rozmazan\u011b a \u0161pinav\u011b.<\/p>\n\n\n\n Pokud jsou pr\u016fchodky stanov\u00e9 (zakryt\u00e9 p\u00e1jec\u00ed maskou)<\/a>, lze po nich bezpe\u010dn\u011bji p\u0159ej\u00ed\u017ed\u011bt s\u00edtotiskem. Pokud jsou pr\u016fchodky otev\u0159en\u00e9, m\u016f\u017ee se barva roz\u0161\u00ed\u0159it do otvor\u016f nebo se kolem otvoru p\u0159etrhnout. U hust\u00fdch vzor\u016f \u010dasto zlep\u0161uje kvalitu tisku stanov\u00e1n\u00ed pr\u016fchodek pod s\u00edtotiskem.<\/p>\n\n\n\n Standardn\u00ed barvy s\u00edtotisku: b\u00edl\u00e1, \u010dern\u00e1, \u017elut\u00e1<\/strong>. Nejlep\u0161\u00ed volba z\u00e1vis\u00ed na barva p\u00e1jec\u00ed masky a zobrazovac\u00ed prost\u0159ed\u00ed<\/a>.<\/p>\n\n\n\n B\u011b\u017en\u00e9 p\u00e1rov\u00e1n\u00ed:<\/p>\n\n\n\n Lid\u00e9 zapom\u00ednaj\u00ed na jednu v\u011bc. Povrchov\u00e1 \u00faprava m\u011bn\u00ed odrazivost. ENIG<\/a> je leskl\u00fd, HASL <\/a>m\u016f\u017ee b\u00fdt m\u00edsty nerovnom\u011brn\u00fd a odraziv\u00fd. P\u0159i jasn\u00e9m sv\u011btle jsou n\u011bkter\u00e9 n\u00e1pisy h\u016f\u0159e \u010diteln\u00e9, i kdy\u017e je kontrast \u201cteoreticky\u201d v po\u0159\u00e1dku.<\/p>\n\n\n\n Pokud v\u00e1m z\u00e1le\u017e\u00ed na \u010ditelnosti, nevyb\u00edrejte n\u00edzk\u00fd kontrast kv\u016fli estetice.<\/p>\n\n\n\n N\u011bkolik n\u00e1vyk\u016f, kter\u00e9 zvy\u0161uj\u00ed rychlost mont\u00e1\u017ee a sni\u017euj\u00ed po\u010det chyb.<\/p>\n\n\n\n Zn\u00ed to samoz\u0159ejm\u011b. Ne v\u017edy se to d\u011bl\u00e1.<\/p>\n\n\n\n Pro diody, LED diody, elektrolytick\u00e9 prvky. Pou\u017eijte oboj\u00ed:<\/p>\n\n\n\n Proto\u017ee pokud se jeden z nich odst\u0159ihne, druh\u00fd \u010dasto p\u0159e\u017eije.<\/p>\n\n\n\n Pokud bude deska zkou\u0161ena:<\/p>\n\n\n\n \u0160t\u00edtky s testovac\u00edmi body neumis\u0165ujte na m\u00edsta, kter\u00e1 budou zakryta st\u00edn\u011bn\u00edm, chladi\u010di nebo vysok\u00fdmi konektory.<\/p>\n\n\n\n S\u00edtotisk m\u016f\u017ee selhat n\u011bkolika p\u0159edv\u00eddateln\u00fdmi zp\u016fsoby.<\/p>\n\n\n\n Mezi p\u0159\u00ed\u010diny pat\u0159\u00ed chyby p\u0159i registraci<\/a>, deformace desky a procesn\u00ed tolerance. P\u0159i ru\u010dn\u00edm s\u00edtotisku je zarovn\u00e1n\u00ed v\u00edce z\u00e1visl\u00e9 na obsluze. Automatizovan\u00e9 tisk\u00e1rny mohou dos\u00e1hnout mikrometrick\u00e9ho zarovn\u00e1n\u00ed, ale nic nen\u00ed dokonal\u00e9.<\/p>\n\n\n\n Navrhn\u011bte kolem n\u011bj:<\/p>\n\n\n\n \u010casto kv\u016fli nadm\u011brn\u00e9mu mno\u017estv\u00ed inkoustu, nespr\u00e1vn\u00e9 viskozit\u011b, zne\u010di\u0161t\u011bn\u00ed nebo nespr\u00e1vn\u00e9mu vytvrzen\u00ed.<\/p>\n\n\n\n Tov\u00e1rnu nem\u016f\u017eete ovlivnit viskozita inkoustu<\/a> z CADu, ale m\u016f\u017eete:<\/p>\n\n\n\n Opot\u0159ebovan\u00e1 s\u00edta, \u0161patn\u00e1 p\u0159ilnavost, p\u016fsoben\u00ed prost\u0159ed\u00ed, \u0161patn\u00e9 cykly vytvrzov\u00e1n\u00ed. Op\u011bt jde o probl\u00e9my na stran\u011b v\u00fdroby, ale v\u00e1\u0161 n\u00e1vrh pom\u00e1h\u00e1 t\u00edm, \u017ee se dr\u017e\u00ed v r\u00e1mci pohodln\u00fdch velikost\u00ed prvk\u016f.<\/p>\n\n\n\n A na skladov\u00e1n\u00ed z\u00e1le\u017e\u00ed. Vlhkost a v\u00fdkyvy teplot mohou ovlivnit kvalitu. Pokud jsou desky ur\u010deny do n\u00e1ro\u010dn\u00fdch podm\u00ednek, pora\u010fte se s v\u00fdrobcem o typu inkoustu a o\u010dek\u00e1van\u00e9 trvanlivosti.<\/p>\n\n\n\n Uvid\u00edte odkazy na normy, jako je IPC-7351, pro vzory pozemk\u016f a pokyny pro um\u00edst\u011bn\u00ed. Existuj\u00ed tak\u00e9 normy t\u00fdkaj\u00edc\u00ed se konvenc\u00ed zna\u010den\u00ed, kontroly, trvanlivosti a obecn\u00e9 p\u0159ijatelnosti v\u00fdroby.<\/p>\n\n\n\n V praxi se p\u0159i navrhov\u00e1n\u00ed s\u00edtotisku uplat\u0148uje \u201cmy\u0161len\u00ed IPC\u201d:<\/p>\n\n\n\n Pokud se zab\u00fdv\u00e1te zdravotnictv\u00edm, automobilov\u00fdm a leteck\u00fdm pr\u016fmyslem, pak ano, m\u011bli byste se p\u0159izp\u016fsobit p\u0159esn\u00fdm standardn\u00edm po\u017eadavk\u016fm na zna\u010den\u00ed a sledovatelnost. Pro v\u011bt\u0161inu komer\u010dn\u00edch desek je st\u00e1le v\u00fdhodn\u00e9 dodr\u017eovat stejnou discipl\u00ednu.<\/p>\n\n\n\n Flex desky se oh\u00fdbaj\u00ed. Inkoust se tak\u00e9 mus\u00ed oh\u00fdbat a p\u0159ilnavost m\u016f\u017ee b\u00fdt obt\u00ed\u017en\u011bj\u0161\u00ed. Tiskov\u00fd tlak a nap\u011bt\u00ed s\u00edta jsou citliv\u011bj\u0161\u00ed, tak\u017ee velmi jemn\u00e9 legendy jsou rizikov\u011bj\u0161\u00ed.<\/p>\n\n\n\n Pokud je va\u0161e flexi konstrukce hust\u00e1, zva\u017ete:<\/p>\n\n\n\n N\u011bkdy prost\u011b nen\u00ed m\u00edsto.<\/p>\n\n\n\n Co funguje l\u00e9pe ne\u017e zmen\u0161ov\u00e1n\u00ed v\u0161eho:<\/p>\n\n\n\n Pokud chcete za\u010d\u00edt, m\u016f\u017eete se p\u0159ihl\u00e1sit do v\u011bt\u0161iny komis\u00ed:<\/p>\n\n\n\n Nen\u00ed to okouzluj\u00edc\u00ed. Ale dob\u0159e se tiskne a dob\u0159e se \u010dte.<\/p>\n\n\n\n Mnoho v\u00fdrobc\u016f desek plo\u0161n\u00fdch spoj\u016f zahrnuje s\u00edtotisk jako standardn\u00ed mo\u017enost, v\u010detn\u011b slu\u017eeb jako PCBGOGO a mnoha dal\u0161\u00edch. A\u0165 u\u017e je va\u0161e deska vyrobena pomoc\u00ed LPI nebo DLP, v\u00fd\u0161e uveden\u00e9 z\u00e1klady n\u00e1vrhu st\u00e1le plat\u00ed.<\/p>\n\n\n\n Pokud tisknete ru\u010dn\u011b ve vlastn\u00ed re\u017eii, po\u010d\u00edtejte s v\u011bt\u0161\u00ed variabilitou a v\u011bt\u0161\u00edmi probl\u00e9my se zarovn\u00e1n\u00edm. Automatizovan\u00e9 s\u00edtotiskov\u00e9 tisk\u00e1rny<\/a> jsou rychlej\u0161\u00ed a konzistentn\u011bj\u0161\u00ed pro s\u00e9riovou pr\u00e1ci, ale v\u00e1\u0161 n\u00e1vrh mus\u00ed b\u00fdt st\u00e1le vyrobiteln\u00fd.<\/p>\n\n\n\n A ano, pokud jste n\u011bkdy vid\u011bli desku, kde jsou legendy m\u00edrn\u011b posunut\u00e9 a chyb\u00ed polovina ozna\u010den\u00ed \u201cR\u201d, obvykle to nen\u00ed proto, \u017ee by design\u00e9r \u201czapomn\u011bl\u201d. Je to proto, \u017ee n\u00e1vrh sed\u011bl na sam\u00e9 hranici mo\u017enost\u00ed procesu.<\/p>\n\n\n\n Hled\u00e1te spolehliv\u00e9ho partnera pro s\u00edtotisk a v\u00fdrobu kompletn\u00edch desek plo\u0161n\u00fdch spoj\u016f? Philifast<\/strong> <\/a>je zde, aby podpo\u0159il v\u00e1\u0161 projekt od n\u00e1vrhu a\u017e po dod\u00e1n\u00ed. Kontaktujte n\u00e1s a z\u00edskejte rychlou a profesion\u00e1ln\u00ed nab\u00eddku.<\/a><\/strong><\/p>\n\n\n\n S\u00edtotisk na desce plo\u0161n\u00fdch spoj\u016f je nevodiv\u00e1 vrstva inkoustu nati\u0161t\u011bn\u00e1 na desce, kter\u00e1 ozna\u010duje sou\u010d\u00e1stky, v\u00fdvody 1, polaritu, konektory, propojky, testovac\u00ed body, varov\u00e1n\u00ed, loga a revizn\u00ed k\u00f3dy. Poskytuje ve\u0161ker\u00e9 informace zam\u011b\u0159en\u00e9 na \u010dlov\u011bka, kter\u00e9 pom\u00e1haj\u00ed mont\u00e1\u017en\u00edm technik\u016fm spr\u00e1vn\u011b um\u00edstit sou\u010d\u00e1stky, pom\u00e1haj\u00ed zku\u0161ebn\u00edm technik\u016fm rychle lokalizovat body a pom\u00e1haj\u00ed p\u0159i budouc\u00ed \u00fadr\u017eb\u011b nebo \u0159e\u0161en\u00ed probl\u00e9m\u016f.<\/p>\n\n\n\n P\u0159i s\u00edtotisku na desky plo\u0161n\u00fdch spoj\u016f se obvykle pou\u017e\u00edvaj\u00ed nevodiv\u00e9 barvy na b\u00e1zi epoxid\u016f nebo UV z\u00e1\u0159en\u00ed. Mezi b\u011b\u017en\u00e9 barvy pat\u0159\u00ed b\u00edl\u00e1, \u010dern\u00e1 a \u017elut\u00e1. Epoxidov\u00e9 inkousty maj\u00ed silnou p\u0159ilnavost a dob\u0159e odol\u00e1vaj\u00ed p\u00e1jec\u00edmu teplu, zat\u00edmco inkousty vytvrzovan\u00e9 UV z\u00e1\u0159en\u00edm rychle schnou a jsou vhodn\u00e9 pro velkos\u00e9riovou v\u00fdrobu.<\/p>\n\n\n\n Dv\u011bma hlavn\u00edmi metodami tisku jsou Liquid Photo Imaging (LPI) a Direct Legend Printing (DLP). Technologie LPI pou\u017e\u00edv\u00e1 sv\u011btlocitliv\u00fd inkoust s expozi\u010dn\u00edm procesem b\u011b\u017en\u00fdm v s\u00e9riov\u00e9 v\u00fdrob\u011b a b\u00fdv\u00e1 trvanliv\u00e1. DLP zahrnuje p\u0159\u00edm\u00fd inkoustov\u00fd tisk na desku plo\u0161n\u00fdch spoj\u016f, kter\u00fd umo\u017e\u0148uje rychlej\u0161\u00ed zpracov\u00e1n\u00ed a jemn\u011bj\u0161\u00ed detaily, ale m\u016f\u017ee b\u00fdt o n\u011bco m\u00e9n\u011b odoln\u00fd v z\u00e1vislosti na pou\u017eit\u00e9m syst\u00e9mu inkoustu.<\/p>\n\n\n\n Doporu\u010duj\u00ed se jednoduch\u00e1, standardn\u00ed bezpatkov\u00e1 p\u00edsma, jako jsou p\u00edsma s jedn\u00edm tahem\/vektorov\u00e1 p\u00edsma nebo p\u00edsma podobn\u00e1 styl\u016fm Arial, Helvetica nebo DIN. Vyhn\u011bte se p\u00edsmu se serify, tenk\u00fdmi tahy, ozdobn\u00fdmi prvky, kurz\u00edvou v mal\u00fdch velikostech nebo v\u0161emi velk\u00fdmi p\u00edsmeny v drobn\u00e9m textu. Jednotnost stylu p\u00edsma v cel\u00e9m textu zlep\u0161uje \u010ditelnost p\u0159i mont\u00e1\u017ei.<\/p>\n\n\n\n U referen\u010dn\u00edch ozna\u010den\u00ed a \u0161t\u00edtk\u016f ur\u010den\u00fdch pro \u010dten\u00ed \u010dlov\u011bkem bez zv\u011bt\u0161en\u00ed: v\u00fd\u0161ka znaku by m\u011bla b\u00fdt v rozmez\u00ed 1,0 a\u017e 1,5 mm (v p\u0159\u00edpad\u011b pot\u0159eby minim\u00e1ln\u011b 0,8 mm) a \u0161\u00ed\u0159ka tahu by m\u011bla b\u00fdt v rozmez\u00ed 0,15 a\u017e 0,20 mm (v p\u0159\u00edpad\u011b pot\u0159eby minim\u00e1ln\u011b 0,12 mm). P\u0159im\u011b\u0159en\u00e9 rozestupy mezi tahy jsou rovn\u011b\u017e z\u00e1sadn\u00ed pro zachov\u00e1n\u00ed z\u0159etelnosti i p\u0159es rozprost\u0159en\u00ed inkoustu nebo posuny registrace b\u011bhem v\u00fdroby.<\/p>\n\n\n\n Ne, s\u00edtotisk nen\u00ed n\u00e1hradou p\u00e1jec\u00ed masky. P\u00e1jec\u00ed maska zabra\u0148uje vzniku p\u00e1jec\u00edch m\u016fstk\u016f a chr\u00e1n\u00ed m\u011bd\u011bn\u00e9 stopy; s\u00edtotisk slou\u017e\u00ed v\u00fdhradn\u011b jako ozna\u010dovac\u00ed vrstva pro komunika\u010dn\u00ed \u00fa\u010dely, jako je ozna\u010dov\u00e1n\u00ed sou\u010d\u00e1stek a testovac\u00edch bod\u016f. Pou\u017eit\u00ed s\u00edtotisku k oprav\u011b rizik spojen\u00fdch s p\u00e1jen\u00edm m\u016f\u017ee v\u00e9st k probl\u00e9m\u016fm, jako je vyp\u00e1len\u00ed nebo rozmaz\u00e1n\u00ed inkoustu.<\/p>\n\n\n\n <\/p>","protected":false},"excerpt":{"rendered":" Zjednodu\u0161en\u011b \u0159e\u010deno, s\u00edtotisk je nevodiv\u00e1 legenda vyti\u0161t\u011bn\u00e1 na desce, kter\u00e1 identifikuje komponenty, pin 1, polaritu, konektory, [...]<\/p>","protected":false},"author":1,"featured_media":4893,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[36],"tags":[27,37,341,61,339,53,340,342,344,343],"class_list":["post-4890","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pcb-design","tag-pcb-assembly","tag-pcb-design","tag-pcb-font-size","tag-pcb-layout","tag-pcb-legend","tag-pcb-manufacturing","tag-pcb-silkscreen","tag-pcb-text-guidelines","tag-silkscreen-printing","tag-smt-pcb"],"spectra_custom_meta":{"_edit_lock":["1778146567:1"],"rank_math_internal_links_processed":["1"],"rank_math_primary_category":["36"],"rank_math_seo_score":["82"],"rank_math_title":["%title%"],"rank_math_focus_keyword":["Silk Screen"],"rank_math_description":["Stop unreadable legends. 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});\";s:18:\"current_block_list\";a:21:{i:0;s:14:\"core\/paragraph\";i:1;s:12:\"core\/heading\";i:2;s:9:\"core\/list\";i:3;s:14:\"core\/list-item\";i:4;s:10:\"core\/image\";i:5;s:11:\"core\/search\";i:6;s:10:\"core\/group\";i:7;s:17:\"core\/latest-posts\";i:8;s:20:\"core\/latest-comments\";i:9;s:13:\"core\/archives\";i:10;s:15:\"core\/categories\";i:11;s:10:\"core\/embed\";i:12;s:17:\"uagb\/social-share\";i:13;s:23:\"uagb\/social-share-child\";i:14;s:19:\"uagb\/call-to-action\";i:15;s:14:\"uagb\/icon-list\";i:16;s:20:\"uagb\/icon-list-child\";i:17;s:14:\"uagb\/container\";i:18;s:9:\"uagb\/icon\";i:19;s:17:\"core\/social-links\";i:20;s:16:\"core\/social-link\";}s:8:\"uag_flag\";b:1;s:11:\"uag_version\";i:1781592963;s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"]},"uagb_featured_image_src":{"full":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Silk-Screen-PCB.webp",900,600,false],"thumbnail":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Silk-Screen-PCB-150x150.webp",150,150,true],"medium":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Silk-Screen-PCB-300x200.webp",300,200,true],"medium_large":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Silk-Screen-PCB-768x512.webp",768,512,true],"large":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Silk-Screen-PCB.webp",900,600,false],"1536x1536":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Silk-Screen-PCB.webp",900,600,false],"2048x2048":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Silk-Screen-PCB.webp",900,600,false],"trp-custom-language-flag":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Silk-Screen-PCB-18x12.webp",18,12,true]},"uagb_author_info":{"display_name":"Philifast","author_link":"https:\/\/flj-pcb.com\/cs\/author\/2475017442jygmail-com\/"},"uagb_comment_info":0,"uagb_excerpt":"In simple terms, silkscreen is the non conductive legend printed on the board to identify components, pin 1, polarity, connectors, […]","_links":{"self":[{"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/posts\/4890","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/comments?post=4890"}],"version-history":[{"count":1,"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/posts\/4890\/revisions"}],"predecessor-version":[{"id":4894,"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/posts\/4890\/revisions\/4894"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/media\/4893"}],"wp:attachment":[{"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/media?parent=4890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/categories?post=4890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/flj-pcb.com\/cs\/wp-json\/wp\/v2\/tags?post=4890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Nejlep\u0161\u00ed styl p\u00edsma pro s\u00edtotisk PCB<\/h2>\n\n\n\n
\n
Pou\u017e\u00edvejte jednoduch\u00e1, standardn\u00ed bezpatkov\u00e1 p\u00edsma.<\/h3>\n\n\n\n
\n
![\"Best](\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/Best-font-style-for-PCB-silkscreen.webp\")
<\/figure>\n\n\n\nVyhn\u011bte se t\u011bmto typ\u016fm p\u00edsma<\/h3>\n\n\n\n
\n
Je\u0161t\u011b jeden nudn\u00fd, ale d\u016fle\u017eit\u00fd bod<\/h3>\n\n\n\n
Nejlep\u0161\u00ed velikost textu pro s\u00edtotisk na PCB (co skute\u010dn\u011b funguje)<\/h2>\n\n\n\n
\n
Doporu\u010den\u00e9 velikosti textu pro s\u00edtotisk (obecn\u011b)<\/h3>\n\n\n\n
\n
\n
\n
D\u016fle\u017eit\u00e9 jsou mezery mezi p\u00edsmeny<\/h3>\n\n\n\n
Nejlep\u0161\u00ed \u0161\u00ed\u0159ka \u010d\u00e1ry pro s\u00edtotiskov\u00e9 obrysy a symboly<\/h2>\n\n\n\n
\n
Vypln\u011bn\u00e9 tvary vs. obrysy<\/h3>\n\n\n\n
Pravidla pro uvoln\u011bn\u00ed: kam se s\u00edtotisk NESM\u00cd um\u00edstit<\/h2>\n\n\n\n
\n
Maskovan\u00e9 vs. nemaskovan\u00e9 pr\u016fchodky<\/h3>\n\n\n\n
V\u00fdb\u011br barev: co je skute\u010dn\u011b \u010diteln\u00e9<\/h2>\n\n\n\n
\n
Tipy pro um\u00edst\u011bn\u00ed, kter\u00e9 v\u00e1m pozd\u011bji u\u0161et\u0159\u00ed<\/h2>\n\n\n\n
Um\u00edst\u011bte referen\u010dn\u00ed ozna\u010den\u00ed na viditeln\u00e9 m\u00edsto po mont\u00e1\u017ei.<\/h3>\n\n\n\n
\n
Zna\u010dky orientace a polarity by m\u011bly b\u00fdt nadbyte\u010dn\u00e9.<\/h3>\n\n\n\n
\n
Ozna\u010dte testovac\u00ed body, jako byste to mysleli v\u00e1\u017en\u011b<\/h3>\n\n\n\n
\n
Jak si v\u00fdrobn\u00ed reality pohr\u00e1vaj\u00ed se s\u00edtotiskem (a jak ho obej\u00edt)<\/h2>\n\n\n\n
Nesouosost a posun registrace<\/h3>\n\n\n\n
\n
Rozmaz\u00e1v\u00e1n\u00ed a rozt\u00edr\u00e1n\u00ed inkoustu<\/h3>\n\n\n\n
\n
![\"PCB](\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/PCB-silkscreen-offset.webp\")
<\/figure>\n\n\n\nChyb\u011bj\u00edc\u00ed nebo vybledl\u00e9 otisky<\/h3>\n\n\n\n
IPC a konvence symbol\u016f (rozumn\u00fd p\u0159\u00edstup)<\/h2>\n\n\n\n
\n
Speci\u00e1ln\u00ed p\u0159\u00edpady: flexibiln\u00ed desky plo\u0161n\u00fdch spoj\u016f a desky s vysokou hustotou.<\/h2>\n\n\n\n
Flexibiln\u00ed desky plo\u0161n\u00fdch spoj\u016f<\/h3>\n\n\n\n
\n
Desky s vysokou hustotou<\/h3>\n\n\n\n
\n
Rychl\u00fd kontroln\u00ed seznam: moje \u201cbezpe\u010dn\u00e1 v\u00fdchoz\u00ed\u201d pravidla pro s\u00edtotisk<\/h2>\n\n\n\n
\n
Pozn\u00e1mka k s\u00edtotiskov\u00fdm slu\u017eb\u00e1m a v\u00fdrob\u011b<\/h2>\n\n\n\n
Z\u00edskejte svou nab\u00eddku PCB je\u0161t\u011b dnes<\/h2>\n\n\n\n
\u010casto kladen\u00e9 ot\u00e1zky (FAQ)<\/h2>\n\n\n\n
Co je to s\u00edtotisk na desce plo\u0161n\u00fdch spoj\u016f a pro\u010d je d\u016fle\u017eit\u00fd?<\/h3>\n\n\n\n
Jak\u00e9 materi\u00e1ly a barvy se b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed pro s\u00edtotisk na desky plo\u0161n\u00fdch spoj\u016f?<\/h3>\n\n\n\n
Jak\u00e9 jsou hlavn\u00ed metody tisku s\u00edtotisku na desky plo\u0161n\u00fdch spoj\u016f a jak se li\u0161\u00ed?<\/h3>\n\n\n\n
Jak\u00e9 styly p\u00edsma se doporu\u010duj\u00ed pro s\u00edtotisk na desky plo\u0161n\u00fdch spoj\u016f, aby byla zaji\u0161t\u011bna \u010ditelnost?<\/h3>\n\n\n\n
Jak\u00e9 jsou nejlep\u0161\u00ed z\u00e1sady velikosti textu pro s\u00edtotisk na desky plo\u0161n\u00fdch spoj\u016f, aby byla zaji\u0161t\u011bna \u010ditelnost po v\u00fdrob\u011b?<\/h3>\n\n\n\n
Lze s\u00edtotisk pou\u017e\u00edt jako n\u00e1hradu p\u00e1jec\u00ed masky na desk\u00e1ch plo\u0161n\u00fdch spoj\u016f?<\/h3>\n\n\n\n